EP0977922B1 - Balayeuse mecanique - Google Patents

Balayeuse mecanique Download PDF

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Publication number
EP0977922B1
EP0977922B1 EP98917931A EP98917931A EP0977922B1 EP 0977922 B1 EP0977922 B1 EP 0977922B1 EP 98917931 A EP98917931 A EP 98917931A EP 98917931 A EP98917931 A EP 98917931A EP 0977922 B1 EP0977922 B1 EP 0977922B1
Authority
EP
European Patent Office
Prior art keywords
suction nozzle
suction
brushes
travelling
brush
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98917931A
Other languages
German (de)
English (en)
Other versions
EP0977922A1 (fr
Inventor
Gert Axel LÖVGREN
Karl Thorbjörn HAUGEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Disab Vacuum Technology AB
Original Assignee
Disab Vacuum Technology AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Disab Vacuum Technology AB filed Critical Disab Vacuum Technology AB
Publication of EP0977922A1 publication Critical patent/EP0977922A1/fr
Application granted granted Critical
Publication of EP0977922B1 publication Critical patent/EP0977922B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
    • E01H1/0845—Apparatus dislodging all of the dirt by suction ; Suction nozzles with mechanical loosening or feeding instruments for the dirt to be sucked- up, e.g. brushes, scrapers

Definitions

  • the present invention relates to a sweeping machine intended for sweeping a ground surface, such as streets, roads, asphalt and concrete surfaces and the like, according to the preamble to claim 1.
  • the currently most frequently used street sweeping machines comprise a suction fan and their brushes whirl up dust. Therefore the street is watered before the sweeping is begun. Large quantities of air are consumed.
  • a dry dust street sweeping machine is disclosed in DE-C-647863.
  • a wet dust street sweeping machine is disclosed in DE-C-925 777, forming the basis of the preamble of claim 1.
  • the object of the invention is to remedy the above raw-backs, i.e. large consumption of air and the need of watering.
  • the object is achieved by a sweeping machine according to claim 1.
  • the invention gives the advantage that considerably more effective sweeping is achieved with a smaller amount of air compared with the prior-art technique.
  • the ground surface is swept thanks to the inclined brushes, thereby sweeping most of the dirt towards a zone on the ground positioned between the free ends of the brushes, from which zone the subsequent suction nozzle sucks up the dirt and, on the other hand, dirt that remains on the ground after brushing on either side of said zone is also sucked up by means of the suction nozzle thanks to the suction tube connection between the housing of the brush assembly and the suction nozzle.
  • the elastic skirts on the housing of the brush assembly and the suction nozzle contribute to a great extent to the described favourable effect, said skirts dragging their lower edge along the ground and essentially sealing against the ground, such that dirt and residual dirt can be sucked up by using a small amount of air.
  • the sealing of the skirts against the ground and the enclosing of the brushes in a tight housing connected to the suction nozzle means also, or on the other hand, that essentially no dirt (dust) is emitted to the atmosphere in consequence of the brushing.
  • the brushes are hingedly suspended from the carriage frame as is also the suction nozzle, such that both the brushes and the suction nozzle can follow irregularities in the ground surface.
  • the frame of the carriage is divided into two parts, such that the brushes and the suction nozzle follow the irregularities of the ground surface, independently of each other.
  • the illustrated embodiment of the sweeping machine according to the invention comprises, as essential components seen in the travelling direction of the machine, two brushes 1 which are enclosed in a brush housing 2 and are each rotationally driven with a horizontal shaft 3 by means of engines 4, and a suction nozzle 5 which is connected to the brush housing 2 and which communicates on the one hand with the brush housing 2 via two tubes 6 and, on the other hand, with a suction assembly 7, which is only schematically shown and which is supported by a vehicle 8 provided with a hydraulic system, via a suction duct 9.
  • the above-mentioned components 1-6 are supported by a frame structure forming a carriage 10 with a front wheel 11 and pairs of wheels 12, 13, said carriage 10 being mechanically coupled to the vehicle 8 by means of a mechanism generally designated 14.
  • the carriage 10 and the coupling mechanism 14 are adapted to push the carriage 10; in an alternative embodiment, the coupling mechanism 14 can be adapted to allow pulling of the carriage 10 by means of the vehicle 8.
  • the brushes 1 are cylindrical and have radial bristles. Their horizontal shafts 3 extend essentially transversely of the travelling direction, by which is meant that they make a positive acute angle ⁇ (which can be, for instance, 15°) with the transverse direction. Their free ends facing each other have an inactive distance between themselves, in which the brushes 1 thus do not perform any sweeping operation.
  • the inclination and direction of rotation (engines 4) are such that the brushes 1 throw the dirt in the travelling direction, arrow K.
  • the brush housing 2 encloses the brushes 1 with a high degree of sealing.
  • an elastic skirt 15 (made of e.g. rubber) is responsible, which is fixed to the brush housing 2 and the lower edge of this thus drags along the ground that is to be swept.
  • This in combination with the inclination of the brush shafts 3, results in thrown-away dirt being thrown back against the brushes 1 and being gradually collected in a zone Z midway between the brushes 1, whose width largely corresponds to said inactive distance.
  • the path of the dirt is indicated by dashed arrows K1.
  • This dirt zone is sucked away by means of the subsequent suction nozzle 5, the suction duct 9 and the suction assembly 7.
  • the opening 9' of the suction duct 9 at the top of the suction nozzle 5, which has an essentially inverted U section closed at the ends, is for the purpose arranged in the centre of the suction nozzle 5, which has a width, transversely of the travelling direction, corresponding to the width of the brush housing 2 in the same direction.
  • the lower part of the suction nozzle 5 is formed of an elastic skirt 16, with the lower edge of which the suction nozzle drags along the ground. The suction force of the suction nozzle 5 is thus greatest just in front of the zone Z, to which the dirt has been brushed.
  • the brushes 1 also whip dirt into pits in the ground and miss some of the dirt, i.e. all the dirt does not go as described above to the central zone. It is for the purpose of taking care of this residual dirt that the suction connection between the brush housing 2 and the suction nozzle 5 is arranged via the tubes 6. These lead to the suction nozzle 5 at the ends of the top of the suction nozzle 5, spaced from the central opening 9' of the suction duct 9 in the suction nozzle 5, and lead at their other end to the brush housing 2 at the top thereof, close to the ends of the brush housing 2.
  • the brush housing 2 and the suction nozzle 5 are interconnected by means of a parallel link mechanism 17 arranged to allow vertical movement of the suction nozzle 5, which rolls on the pair of wheels 13 which is a pair of castor wheels, and the pair of wheels 12, which is stationary, relative to the brush housing 2, which rolls on the single castor wheel 11 which is centrally arranged.
  • the brush shafts 3 are suspended from a yoke 18, which is hingedly mounted at 19 on the frame of the carriage.
  • the brush housing 2 has preferably openable parts 20, in this case top parts, which allow access to and inspection or exchange of the brushes 1.
  • the frame of the carriage comprises a first frame part 21, which constitutes a central part 22 of the brush housing 2, to which the openable parts 20 of the brush housing are attached by means of hinges 23.
  • the first frame part 21 also supports the pins 24 for the hinge connection of the brushes 1 with the yoke 18.
  • the first frame part 21 comprises a crossbar 24, to which the suction nozzle 5 is fixed.
  • a second frame part 25 is hingedly mounted on the first frame part 21 on a vertical central pin 26 thereof and is further connected to the first frame part 21 by means of a piston-and-cylinder assembly 27 with articulated fixing points.
  • the second frame part 25 is at its rear end suspendable from the vehicle 8 for horizontal pivoting.
  • the carriage is pivotable sideways from a certain travelling direction, as is shown in Figs 3 and 4, in which case the outwards pivoting is controlled by means of a piston-and-cylinder assembly 28, and the brush housing 2 as well as the suction nozzle 7 are pivotable horizontally means of the piston-and-cylinder assembly 27 relative to the second frame part 25.
  • the carriage can thus be steered through curves and can sweep in a laterally displaced position relative to the vehicle, thereby efficiently sweeping, for instance, the edge of a road.
  • the engines 4 and the piston-and-cylinder assemblies as described are hydraulically operated by means of the hydraulic system of the vehicle, and suitable control devices are of course arranged in the system.
  • the engines 4 are synchronously operated by being connected in series.
  • Reference numeral 34 refers to a flexible cloth, which seals the gap between the suction nozzle 5 and the brush housing 2 so as to achieve an improved vacuum effect in the suction nozzle 5 and, thus, in the brush housing 2.
  • suction nozzle 5 can be incorporated in the brush housing 2, whereby the tubes 6 will not be necessary, merely openings at the ends of the suction nozzle at the top or in the end walls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Cleaning In General (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Vending Machines For Individual Products (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (6)

  1. Balayeuse mécanique comprenant un ensemble de brosses (1) et un aspirateur (5, 7, 9), aspirant la poussière qui a été enlevée sur la surface d'un sol, par exemple une route, une rue, du bitume ou une surface en béton, dans laquelle
    a) l'ensemble de brosses comprend deux brosses allongées et cylindriques (1) qui sont disposées symétriquement des deux côtés du sens de fonctionnement (K) de la balayeuse mécanique et ont chacune des soies radiales ainsi qu'un axe d'entraínement (3) disposé parallèlement à la surface d'utilisation afin de faire tourner les brosses,
    a1) lesdits axes d'entraínement (3) s'étendant essentiellement de manière transversale par rapport audit sens de fonctionnement (K) et faisant un angle aigu positif (α) avec un sens perpendiculaire audit sens de fonctionnement, c'est-à-dire que les brosses, dans une vue en plan, sont disposées en V, moyennant quoi le sommet du V est orienté en face du sens de fonctionnement (K), et les extrémités libres des brosses (1) se faisant face sont disposées à distance l'une de l'autre,
    b) l'aspirateur comprend une buse d'aspiration (5) qui, au moyen d'un conduit d'aspiration (9) peut être relié à un dispositif d'aspiration (7) soutenu par un véhicule (8),
    b1) ladite buse d'aspiration (5) étant disposée derrière les brosses (1) comme on peut le voir dans ledit sens de fonctionnement (K),
    b2) ladite buse d'aspiration (5) étant formée d'un caisson qui a un haut et un centre et qui est ouvert en bas,
    b3) le conduit d'aspiration (9) menant vers le haut de la buse d'aspiration (5) au centre de la buse d'aspiration,
    b4) ladite buse d'aspiration (5) étant allongée transversalement par rapport audit sens de fonctionnement (K),
    c) l'ensemble de brosses (2) et la buse d'aspiration (5) sont montés sur un chariot (10) muni de roues (11, 12, 13) ayant un dispositif (14) pour le relier au véhicule (8)
       caractérisé en ce que
    a2) ledit ensemble de brosses (1) étant enfermé dans un capot ouvert en bas (2) monté sur ledit chariot (10), le bord inférieur de ce capot est formé d'une jupe souple (15) disposée pour que son bord libre soit en contact avec la surface du sol qui doit être balayée,
    b5) ledit caisson de la buse d'aspiration (5) ayant un bord inférieur formé d'une jupe souple (16) qui est disposée pour que son bord libre soit en contact avec la surface du sol qui doit être balayée,
    b6) la buse d'aspiration (5) est reliée à l'aspiration par l'intermédiaire de tuyaux (6) au capot (2) de l'ensemble de brosses.
  2. Balayeuse mécanique selon la revendication 1,
       caractérisée en ce que le chariot (10) a un cadre avec des parties pivotantes, qui sont conçues pour permettre une surface de déplacement relative entre la buse d'aspiration (5) et le capot des brosses (2) dans un sens perpendiculaire à la surface d'utilisation.
  3. Balayeuse mécanique selon la revendication 1 ou 2, caractérisée en ce que les axes d'entraínement des brosses (3) sont soutenues pour le pivotement des brosses (1) dans un sens perpendiculaire à la surface d'utilisation.
  4. Balayeuse mécanique selon l'une quelconque des revendications 1-3, caractérisée en ce que le capot des brosses (2) et la buse d'aspiration (5) peuvent pivoter ensemble parallèlement à la surface d'utilisation, pour lesquels on peut faire un usage pivotant d'un système hydraulique dans un véhicule proposé avec eux.
  5. Balayeuse mécanique selon l'une quelconque des revendications 1-3, caractérisée en ce que le capot des brosses (2) et la buse d'aspiration (5) peuvent pivoter ensemble dans un sens perpendiculaire à la surface d'utilisation, pour lesquels on peut faire un usage pivotant d'un système hydraulique dans un véhicule proposé avec eux.
  6. Balayeuse mécanique selon l'une quelconque des revendications 1-5, caractérisée en ce que le capot des brosses (2) et la buse d'aspiration (5) sont des composants séparés, communiquant l'un avec l'autre par l'intermédiaire desdits tuyaux (6) qui, à une extrémité, sont reliés aux extrémités de la buse d'aspiration.
EP98917931A 1997-04-23 1998-04-22 Balayeuse mecanique Expired - Lifetime EP0977922B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9701520 1997-04-23
SE9701520A SE507006C2 (sv) 1997-04-23 1997-04-23 Sopmaskin
PCT/SE1998/000725 WO1998048116A1 (fr) 1997-04-23 1998-04-22 Balayeuse mecanique

Publications (2)

Publication Number Publication Date
EP0977922A1 EP0977922A1 (fr) 2000-02-09
EP0977922B1 true EP0977922B1 (fr) 2004-04-07

Family

ID=20406690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98917931A Expired - Lifetime EP0977922B1 (fr) 1997-04-23 1998-04-22 Balayeuse mecanique

Country Status (8)

Country Link
US (1) US6272720B1 (fr)
EP (1) EP0977922B1 (fr)
AT (1) ATE263868T1 (fr)
AU (1) AU7096198A (fr)
DE (1) DE69823020T2 (fr)
NO (1) NO995117L (fr)
SE (1) SE507006C2 (fr)
WO (1) WO1998048116A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6990709B2 (en) * 2002-10-11 2006-01-31 Surtec, Inc. Vacuum sweeping system for automatic scrubber
US7011795B2 (en) * 2003-05-29 2006-03-14 Jcs/Thg, Llc Apparatus for dispersing scents into the environment
US8108964B2 (en) * 2007-09-25 2012-02-07 Vanderlinden Roger P Sealed pick-up head for a mobile sweeper
EP2203600A4 (fr) * 2007-09-25 2012-11-07 Roger Vanderlinden Tête de ramassage équipée de moyens de poussée de débris pour balayeuse mobile
FR2981670A1 (fr) * 2011-10-24 2013-04-26 Nilfisk Advance As Outil de nettoyage de surfaces pour vehicules d'entretien de voirie

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE647863C (de) * 1937-07-15 Heinrich Schoerling Mit Unterdruck arbeitende Strassenkehr- und Entstaubungsmaschine
US293209A (en) * 1884-02-05 Street-sweeper
US932195A (en) * 1906-02-01 1909-08-24 Auguste Verschuren Street-sweeping vehicle.
US1560612A (en) * 1920-01-06 1925-11-10 J A Horner Means for street cleaning
US1417231A (en) * 1920-04-02 1922-05-23 Albert C Deweese Street sweeper
US1615348A (en) * 1924-03-04 1927-01-25 Schroeder Albert Street-cleaning machine
DE925777C (de) * 1952-09-26 1955-03-28 Streicher Fa M Verfahren zur selbsttaetigen Beseitigung von Strassenschmutz und Strassenreinigungskraftfahrzeug
US3436788A (en) * 1967-07-27 1969-04-08 Wayne Manufacturing Co Streetsweeper vacuum pickup head assembly
SE345492B (fr) * 1968-03-27 1972-05-29 J Eriksson
US3605170A (en) * 1969-03-11 1971-09-20 Gulf & Western Ind Prod Co Mobile suction cleaning device
US4620341A (en) * 1985-06-03 1986-11-04 Rigby Robert B Curb and gutter machine
SE463509B (sv) * 1989-01-27 1990-12-03 Broddway Ab Anordning foer att uppsuga glykol, snoe, is och vatten fraan flygplansuppstaellningsplatser efter avisning
US5560065A (en) * 1991-07-03 1996-10-01 Tymco, Inc. Broom assisted pick-up head

Also Published As

Publication number Publication date
AU7096198A (en) 1998-11-13
SE9701520L (sv) 1998-03-16
DE69823020D1 (de) 2004-05-13
NO995117L (no) 1999-12-17
SE507006C2 (sv) 1998-03-16
DE69823020T2 (de) 2004-08-12
ATE263868T1 (de) 2004-04-15
US6272720B1 (en) 2001-08-14
NO995117D0 (no) 1999-10-21
WO1998048116A1 (fr) 1998-10-29
SE9701520D0 (sv) 1997-04-23
EP0977922A1 (fr) 2000-02-09

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